7212672757 has 8 divisors (see below), whose sum is σ = 7332387840. Its totient is φ = 7093005360.

The previous prime is 7212672749. The next prime is 7212672767. The reversal of 7212672757 is 7572762127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7212672757 - 2³ = 7212672749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7212672767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423468 + ... + 440170.

It is an arithmetic number, because the mean of its divisors is an integer number (916548480).

Almost surely, 2^7212672757 is an apocalyptic number.

It is an amenable number.

7212672757 is a deficient number, since it is larger than the sum of its proper divisors (119715083).

7212672757 is a wasteful number, since it uses less digits than its factorization.

7212672757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23843.

The product of its digits is 576240, while the sum is 46.

The square root of 7212672757 is about 84927.4558490951. The cubic root of 7212672757 is about 1932.1110137326. Note that the first 3 decimals are identical.

The spelling of 7212672757 in words is "seven billion, two hundred twelve million, six hundred seventy-two thousand, seven hundred fifty-seven".